Details der Publikation - Effects of Long-Period Stacking-Order Phase on the Corrosion Behavior of an Mg-Gd-Y-Zn-Zr Alloy

Effects of Long-Period Stacking-Order Phase on the Corrosion Behavior of an Mg-Gd-Y-Zn-Zr Alloy

Abstract This paper investigated the role of long-period stacking-order (LPSO) structure on the corrosion behavior of an Mg-Gd-Y-Zn-Zr alloy. The amounts of the LPSO phase were tailored by heat treatment. The as-received sample contained a small amount of lamellar LPSO phase and $ Mg_{5} $(Gd, Y) particles. The lamellar LPSO was dissolved into the Mg matrix by solution treatment and precipitated at a low cooling rate. Consequently, the sample cooled in a furnace contained large amounts of LPSO phase (furnace-cooled sample). However, almost no LPSO was detected in the sample when cooled into water (water-cooled sample). Corrosion tests indicated that the LPSO phase deteriorated the corrosion properties of Mg alloy. Surface morphology for samples after immersion in 3.5 wt.% NaCl solution implied that galvanic corrosion was predominant for the Mg-Gd-Y-Zn-Zr alloy. The LPSO phase with a low potential was preferentially corroded compared with the Mg matrix, and therefore, a poor corrosion resistance of the Mg alloy containing the LPSO phase..

Medienart:	E-Artikel

Erscheinungsjahr:	2022
Erschienen:	2022

Enthalten in:	Zur Gesamtaufnahme - volume:32
Enthalten in:	Journal of materials engineering and performance - 32(2022), 16 vom: 09. Nov., Seite 7311-7321

Sprache:	Englisch

Beteiligte Personen:	Du, Wei [VerfasserIn] Du, Yuzhou [VerfasserIn] Yang, Zhenlei [VerfasserIn] Ma, Bo [VerfasserIn] Ge, Yanfeng [VerfasserIn] Jiang, Bailing [VerfasserIn]

Links:	Volltext [lizenzpflichtig]

Themen:	Corrosion behavior LPSO Mg alloy Microstructure

Anmerkungen:	© ASM International 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

doi:	10.1007/s11665-022-07623-5

funding:
Förderinstitution / Projekttitel:

PPN (Katalog-ID):	OLC2144923345

Internformat


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Effects of Long-Period Stacking-Order Phase on the Corrosion Behavior of an Mg-Gd-Y-Zn-Zr Alloy

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